High temperature and high pressure gas adsorption instrumentIt is a specialized testing equipment for the adsorption/desorption behavior of gases and solid materials under high temperature and high pressure conditions. It can accurately measure key parameters such as adsorption isotherms, adsorption kinetics, and adsorption heat under different temperature and pressure conditions. It is widely used in material research and performance evaluation in energy, chemical, environmental and other fields. The following are typical application examples:
1、 Evaluation of shale gas reservoirs and optimization of extraction plans
In shale gas exploration and development, high-temperature and high-pressure gas adsorption instruments are mainly used to determine the adsorption characteristics of shale samples for methane.
Experimental conditions: Simulate the underground reservoir environment, set the temperature to 30-150 ℃ and pressure to 0-20MPa, use methane as the adsorbent, and test the adsorption capacity of shale samples at different burial depths.
Application value: By drawing high-pressure methane adsorption isotherms, calculating the Langmuir volume and Langmuir pressure of shale, clarifying the maximum gas adsorption capacity and adsorption desorption law of shale. These data provide a core basis for evaluating shale gas reservoir reserves and developing depressurization desorption extraction plans, helping to improve shale gas recovery.
2、 Performance testing and screening of hydrogen storage materials
Hydrogen storage and transportation is a key link in the hydrogen energy industry, and high-temperature and high-pressure gas adsorption instruments can accurately characterize hydrogen storage materials.
Test subjects: Activated carbon, metal organic framework materials (MOFs), hydrogen storage alloys, etc.
Experimental plan: Within the temperature range of -78~100 ℃ and pressure range of 0~30MPa, test the adsorption capacity and adsorption rate of the material for hydrogen gas, while measuring the adsorption heat data.
Application value: Screening hydrogen storage materials with large adsorption capacity and excellent adsorption kinetics performance, providing data support for material selection of on-board hydrogen storage tanks and fixed hydrogen storage devices. For example, using this device to compare the hydrogen storage performance of MOFs with different pore sizes can optimize the material synthesis process and enhance their practical application potential.
3、 Research and development of carbon dioxide capture and storage (CCS) materials
In response to the demand for greenhouse gas emission reduction, a high-temperature and high-pressure gas adsorption instrument is used to evaluate the performance of CO ₂ capture materials.
Experimental scenario: Simulate the flue gas of coal-fired power plants or the formation environment of oil fields, and test the selective adsorption ability of materials for CO ₂ at 50-200 ℃ and 0-15MPa.
Test subjects: molecular sieves, amine functionalized mesoporous materials, porous carbon materials, etc.
Application value: By measuring the adsorption capacity, adsorption selectivity, and cyclic adsorption desorption stability of materials for CO ₂, efficient CO ₂ capture materials can be screened. In the field of oil field displacement, this equipment can also be used to study the adsorption and diffusion laws of CO ₂ in crude oil formations, providing theoretical guidance for the integrated technology of CO ₂ displacement and storage.
4、 Research on the Adsorption Performance and Reaction Mechanism of Catalysts
In the field of catalytic chemical engineering, high-temperature and high-pressure gas adsorption instruments can analyze the adsorption characteristics of catalysts on reaction gases and reveal the catalytic reaction mechanism.
Experimental case: Testing the adsorption behavior of iron-based catalysts for nitrogen and hydrogen in the synthetic ammonia industry at 400~500 ℃ and 10~30MPa.
Application value: Clarify the adsorption type (physical adsorption/chemical adsorption), adsorption sites, and adsorption strength of catalysts for reaction gases, providing a basis for optimizing the preparation process of catalysts (such as carrier modification, adjustment of active component loading), and thereby improving catalytic reaction efficiency.
5、 Development and Utilization of Coalbed Methane Resources
Similar to shale gas, a high-temperature and high-pressure gas adsorption instrument can measure the high-pressure adsorption characteristics of coal samples for methane.
Key points of the experiment: Consider factors such as the degree of coal metamorphism and pore structure, and test the methane adsorption desorption curves of different coal rank samples under simulated formation temperature and pressure conditions.
Application value: Calculate the critical desorption pressure of coal seams, guide the timing of drainage and pressure reduction in coalbed methane wells, and provide key parameters for estimating coalbed methane resources and designing mining processes, promoting efficient mining and utilization of coalbed methane.